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The weakness had always been its inability to track low-flying aircraft
Full Transcript
00:00:01.000 --> 00:00:03.032
The weakness had always been its inability
00:00:03.032 --> 00:00:05.088
to track low-flying aircraft.
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Movie Summary
During World War II, the British built or reinforced a series of structures consisting of over 26,000 buildings to form a line of defence against an expected German invasion. Rob Bell travels around the UK to learn their secrets.